中国南部区域地表变化对气候的反馈模拟  

The feedback simulation of the earth surface change to the climate in southern China region

作　　者：陈旭[1] 林宏[1] 强振平[1] 

机构地区：[1]西南林学院计算机信息与科学系,云南昆明650224

出　　处：《福建林业科技》2008年第4期58-62,74,共6页Journal of Fujian Forestry Science and Technology

摘　　要：将1990年和2000年2期遥感图像按照BATS类别分类作为RegCM3区域气候模式耦合的陆面过程类型,模拟研究了中国南部区域2种实际地表对2000年气候的反馈。模拟结果表明,地表状况分类与模拟气候数据在时间上的一致能够提高气候模拟的准确性;实际地表的变化对区域温度、径流和蒸发都造成了显著影响,2000年地表模拟结果与1990年地表模拟结果相比,区域温度降低0.314℃,表面径流减小0.4 mm.d-1,蒸发增加了0.315 mm.d-1,地表植被的恢复在一定程度上有益于减小全球变暖的负面影响。According to Biosphere Atmosphere Transfer Scheme （BATS）, two remote sensing images in 1990 and 2000 have been classified to couple regional climate model （RegCM3） as the land-surface processes, and climate feedback of southern China region in 2000 on the actual surface has been simulated and analyzed. The results showed that firstly, the simulation accuracy could be improved if the data of land-cover classification and climate were used in the same year; secondly, the actual change of the earth＇ s surface have caused a significant effect on regional temperature, surface runoff as well as evapotranspiration. Meanwhile, in comparison the simulated results of the earth surface in 2000 with in 1990, it showed that the regional temperature and surface runoff decreased by 0. 314℃ and 0.4 mm.d^-1 respectively, while evapotranspiration increases by 0. 315 mm.d^-1 To some extent, restoration of the earth＇s surface vegetation is benefit for reducing the negative impact of global warming.

关 键 词：区域气候模式 地表变化 生物圈-大气圈输送方案 遥感 

分 类 号：S716.3[农业科学—林学] P461.7[天文地球—大气科学及气象学]